22 有關甲狀腺的血管供應來源，下列配對何者最不實際？ (A)頭臂動脈幹(brachiocephalic trunk)－甲狀腺最下動脈(thyroid ima) (B)頸外動脈(external carotid)－甲狀腺上動脈(superior thyroid ) (C)甲狀頸幹(thyrocervical)－甲狀腺下動脈(inferior thyroid) (D)鎖骨下動脈(subclavian)－甲狀腺上動脈(superior thyroid )